Ronstan Series 20 ball Bearing Block - Triple - 2-Axis Shackle head

The Ronstan Series 20 Ball Bearing Block - Triple - 2-Axis Shackle Head (RF20302) is a precision rigging component designed for military, tactical, and high-load marine applications where smooth mechanical advantage and directional flexibility are essential. This triple pulley block serves operators, riggers, and field personnel who need reliable load distribution across multiple axes during equipment deployment, rope management, or tactical extraction scenarios.

Built on Ronstan's proven Series 20 ball bearing platform, this block delivers low-friction performance essential for minimal energy loss in load handling. The 2-axis shackle head design allows the block to articulate in two planes, eliminating binding and mechanical stress that can compromise mission-critical operations. The triple-sheave configuration distributes tension across three separate wheels, reducing single-point failure risk and enabling complex rigging geometries common in tactical rope systems, extraction harnesses, and heavy-equipment staging.

Field personnel in military, rescue, and tactical rope operations benefit most from this block's ability to handle multi-directional loads while remaining compact and lightweight. With dimensions of 2 x 1 x 4 inches and a verified weight of 0.2 lbs, this block is practical for operators who cannot afford weight or bulk in their kit. Its design ensures that the load line can shift without creating lateral stress on individual sheaves, a critical advantage when deployment angles are unpredictable or dynamic.